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1 | /* | |
2 | * wm8971.c -- WM8971 ALSA SoC Audio driver | |
3 | * | |
4 | * Copyright 2005 Lab126, Inc. | |
5 | * | |
6 | * Author: Kenneth Kiraly <kiraly@lab126.com> | |
7 | * | |
8 | * Based on wm8753.c by Liam Girdwood | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/moduleparam.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/pm.h> | |
21 | #include <linux/i2c.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/slab.h> | |
24 | #include <sound/core.h> | |
25 | #include <sound/pcm.h> | |
26 | #include <sound/pcm_params.h> | |
27 | #include <sound/soc.h> | |
28 | #include <sound/initval.h> | |
29 | ||
30 | #include "wm8971.h" | |
31 | ||
32 | #define WM8971_REG_COUNT 43 | |
33 | ||
34 | static struct workqueue_struct *wm8971_workq = NULL; | |
35 | ||
36 | /* codec private data */ | |
37 | struct wm8971_priv { | |
38 | enum snd_soc_control_type control_type; | |
39 | unsigned int sysclk; | |
40 | }; | |
41 | ||
42 | /* | |
43 | * wm8971 register cache | |
44 | * We can't read the WM8971 register space when we | |
45 | * are using 2 wire for device control, so we cache them instead. | |
46 | */ | |
47 | static const u16 wm8971_reg[] = { | |
48 | 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ | |
49 | 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ | |
50 | 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ | |
51 | 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ | |
52 | 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ | |
53 | 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ | |
54 | 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ | |
55 | 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ | |
56 | 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ | |
57 | 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ | |
58 | 0x0079, 0x0079, 0x0079, /* 40 */ | |
59 | }; | |
60 | ||
61 | #define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0) | |
62 | ||
63 | /* WM8971 Controls */ | |
64 | static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" }; | |
65 | static const char *wm8971_bass_filter[] = { "130Hz @ 48kHz", | |
66 | "200Hz @ 48kHz" }; | |
67 | static const char *wm8971_treble[] = { "8kHz", "4kHz" }; | |
68 | static const char *wm8971_alc_func[] = { "Off", "Right", "Left", "Stereo" }; | |
69 | static const char *wm8971_ng_type[] = { "Constant PGA Gain", | |
70 | "Mute ADC Output" }; | |
71 | static const char *wm8971_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" }; | |
72 | static const char *wm8971_mono_mux[] = {"Stereo", "Mono (Left)", | |
73 | "Mono (Right)", "Digital Mono"}; | |
74 | static const char *wm8971_dac_phase[] = { "Non Inverted", "Inverted" }; | |
75 | static const char *wm8971_lline_mux[] = {"Line", "NC", "NC", "PGA", | |
76 | "Differential"}; | |
77 | static const char *wm8971_rline_mux[] = {"Line", "Mic", "NC", "PGA", | |
78 | "Differential"}; | |
79 | static const char *wm8971_lpga_sel[] = {"Line", "NC", "NC", "Differential"}; | |
80 | static const char *wm8971_rpga_sel[] = {"Line", "Mic", "NC", "Differential"}; | |
81 | static const char *wm8971_adcpol[] = {"Normal", "L Invert", "R Invert", | |
82 | "L + R Invert"}; | |
83 | ||
84 | static const struct soc_enum wm8971_enum[] = { | |
85 | SOC_ENUM_SINGLE(WM8971_BASS, 7, 2, wm8971_bass), /* 0 */ | |
86 | SOC_ENUM_SINGLE(WM8971_BASS, 6, 2, wm8971_bass_filter), | |
87 | SOC_ENUM_SINGLE(WM8971_TREBLE, 6, 2, wm8971_treble), | |
88 | SOC_ENUM_SINGLE(WM8971_ALC1, 7, 4, wm8971_alc_func), | |
89 | SOC_ENUM_SINGLE(WM8971_NGATE, 1, 2, wm8971_ng_type), /* 4 */ | |
90 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 1, 4, wm8971_deemp), | |
91 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 4, 4, wm8971_mono_mux), | |
92 | SOC_ENUM_SINGLE(WM8971_ADCTL1, 1, 2, wm8971_dac_phase), | |
93 | SOC_ENUM_SINGLE(WM8971_LOUTM1, 0, 5, wm8971_lline_mux), /* 8 */ | |
94 | SOC_ENUM_SINGLE(WM8971_ROUTM1, 0, 5, wm8971_rline_mux), | |
95 | SOC_ENUM_SINGLE(WM8971_LADCIN, 6, 4, wm8971_lpga_sel), | |
96 | SOC_ENUM_SINGLE(WM8971_RADCIN, 6, 4, wm8971_rpga_sel), | |
97 | SOC_ENUM_SINGLE(WM8971_ADCDAC, 5, 4, wm8971_adcpol), /* 12 */ | |
98 | SOC_ENUM_SINGLE(WM8971_ADCIN, 6, 4, wm8971_mono_mux), | |
99 | }; | |
100 | ||
101 | static const struct snd_kcontrol_new wm8971_snd_controls[] = { | |
102 | SOC_DOUBLE_R("Capture Volume", WM8971_LINVOL, WM8971_RINVOL, 0, 63, 0), | |
103 | SOC_DOUBLE_R("Capture ZC Switch", WM8971_LINVOL, WM8971_RINVOL, | |
104 | 6, 1, 0), | |
105 | SOC_DOUBLE_R("Capture Switch", WM8971_LINVOL, WM8971_RINVOL, 7, 1, 1), | |
106 | ||
107 | SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8971_LOUT1V, | |
108 | WM8971_ROUT1V, 7, 1, 0), | |
109 | SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8971_LOUT2V, | |
110 | WM8971_ROUT2V, 7, 1, 0), | |
111 | SOC_SINGLE("Mono Playback ZC Switch", WM8971_MOUTV, 7, 1, 0), | |
112 | ||
113 | SOC_DOUBLE_R("PCM Volume", WM8971_LDAC, WM8971_RDAC, 0, 255, 0), | |
114 | ||
115 | SOC_DOUBLE_R("Bypass Left Playback Volume", WM8971_LOUTM1, | |
116 | WM8971_LOUTM2, 4, 7, 1), | |
117 | SOC_DOUBLE_R("Bypass Right Playback Volume", WM8971_ROUTM1, | |
118 | WM8971_ROUTM2, 4, 7, 1), | |
119 | SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8971_MOUTM1, | |
120 | WM8971_MOUTM2, 4, 7, 1), | |
121 | ||
122 | SOC_DOUBLE_R("Headphone Playback Volume", WM8971_LOUT1V, | |
123 | WM8971_ROUT1V, 0, 127, 0), | |
124 | SOC_DOUBLE_R("Speaker Playback Volume", WM8971_LOUT2V, | |
125 | WM8971_ROUT2V, 0, 127, 0), | |
126 | ||
127 | SOC_ENUM("Bass Boost", wm8971_enum[0]), | |
128 | SOC_ENUM("Bass Filter", wm8971_enum[1]), | |
129 | SOC_SINGLE("Bass Volume", WM8971_BASS, 0, 7, 1), | |
130 | ||
131 | SOC_SINGLE("Treble Volume", WM8971_TREBLE, 0, 7, 0), | |
132 | SOC_ENUM("Treble Cut-off", wm8971_enum[2]), | |
133 | ||
134 | SOC_SINGLE("Capture Filter Switch", WM8971_ADCDAC, 0, 1, 1), | |
135 | ||
136 | SOC_SINGLE("ALC Target Volume", WM8971_ALC1, 0, 7, 0), | |
137 | SOC_SINGLE("ALC Max Volume", WM8971_ALC1, 4, 7, 0), | |
138 | ||
139 | SOC_SINGLE("ALC Capture Target Volume", WM8971_ALC1, 0, 7, 0), | |
140 | SOC_SINGLE("ALC Capture Max Volume", WM8971_ALC1, 4, 7, 0), | |
141 | SOC_ENUM("ALC Capture Function", wm8971_enum[3]), | |
142 | SOC_SINGLE("ALC Capture ZC Switch", WM8971_ALC2, 7, 1, 0), | |
143 | SOC_SINGLE("ALC Capture Hold Time", WM8971_ALC2, 0, 15, 0), | |
144 | SOC_SINGLE("ALC Capture Decay Time", WM8971_ALC3, 4, 15, 0), | |
145 | SOC_SINGLE("ALC Capture Attack Time", WM8971_ALC3, 0, 15, 0), | |
146 | SOC_SINGLE("ALC Capture NG Threshold", WM8971_NGATE, 3, 31, 0), | |
147 | SOC_ENUM("ALC Capture NG Type", wm8971_enum[4]), | |
148 | SOC_SINGLE("ALC Capture NG Switch", WM8971_NGATE, 0, 1, 0), | |
149 | ||
150 | SOC_SINGLE("Capture 6dB Attenuate", WM8971_ADCDAC, 8, 1, 0), | |
151 | SOC_SINGLE("Playback 6dB Attenuate", WM8971_ADCDAC, 7, 1, 0), | |
152 | ||
153 | SOC_ENUM("Playback De-emphasis", wm8971_enum[5]), | |
154 | SOC_ENUM("Playback Function", wm8971_enum[6]), | |
155 | SOC_ENUM("Playback Phase", wm8971_enum[7]), | |
156 | ||
157 | SOC_DOUBLE_R("Mic Boost", WM8971_LADCIN, WM8971_RADCIN, 4, 3, 0), | |
158 | }; | |
159 | ||
160 | /* | |
161 | * DAPM Controls | |
162 | */ | |
163 | ||
164 | /* Left Mixer */ | |
165 | static const struct snd_kcontrol_new wm8971_left_mixer_controls[] = { | |
166 | SOC_DAPM_SINGLE("Playback Switch", WM8971_LOUTM1, 8, 1, 0), | |
167 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_LOUTM1, 7, 1, 0), | |
168 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_LOUTM2, 8, 1, 0), | |
169 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_LOUTM2, 7, 1, 0), | |
170 | }; | |
171 | ||
172 | /* Right Mixer */ | |
173 | static const struct snd_kcontrol_new wm8971_right_mixer_controls[] = { | |
174 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_ROUTM1, 8, 1, 0), | |
175 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_ROUTM1, 7, 1, 0), | |
176 | SOC_DAPM_SINGLE("Playback Switch", WM8971_ROUTM2, 8, 1, 0), | |
177 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_ROUTM2, 7, 1, 0), | |
178 | }; | |
179 | ||
180 | /* Mono Mixer */ | |
181 | static const struct snd_kcontrol_new wm8971_mono_mixer_controls[] = { | |
182 | SOC_DAPM_SINGLE("Left Playback Switch", WM8971_MOUTM1, 8, 1, 0), | |
183 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8971_MOUTM1, 7, 1, 0), | |
184 | SOC_DAPM_SINGLE("Right Playback Switch", WM8971_MOUTM2, 8, 1, 0), | |
185 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8971_MOUTM2, 7, 1, 0), | |
186 | }; | |
187 | ||
188 | /* Left Line Mux */ | |
189 | static const struct snd_kcontrol_new wm8971_left_line_controls = | |
190 | SOC_DAPM_ENUM("Route", wm8971_enum[8]); | |
191 | ||
192 | /* Right Line Mux */ | |
193 | static const struct snd_kcontrol_new wm8971_right_line_controls = | |
194 | SOC_DAPM_ENUM("Route", wm8971_enum[9]); | |
195 | ||
196 | /* Left PGA Mux */ | |
197 | static const struct snd_kcontrol_new wm8971_left_pga_controls = | |
198 | SOC_DAPM_ENUM("Route", wm8971_enum[10]); | |
199 | ||
200 | /* Right PGA Mux */ | |
201 | static const struct snd_kcontrol_new wm8971_right_pga_controls = | |
202 | SOC_DAPM_ENUM("Route", wm8971_enum[11]); | |
203 | ||
204 | /* Mono ADC Mux */ | |
205 | static const struct snd_kcontrol_new wm8971_monomux_controls = | |
206 | SOC_DAPM_ENUM("Route", wm8971_enum[13]); | |
207 | ||
208 | static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { | |
209 | SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, | |
210 | &wm8971_left_mixer_controls[0], | |
211 | ARRAY_SIZE(wm8971_left_mixer_controls)), | |
212 | SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, | |
213 | &wm8971_right_mixer_controls[0], | |
214 | ARRAY_SIZE(wm8971_right_mixer_controls)), | |
215 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8971_PWR2, 2, 0, | |
216 | &wm8971_mono_mixer_controls[0], | |
217 | ARRAY_SIZE(wm8971_mono_mixer_controls)), | |
218 | ||
219 | SND_SOC_DAPM_PGA("Right Out 2", WM8971_PWR2, 3, 0, NULL, 0), | |
220 | SND_SOC_DAPM_PGA("Left Out 2", WM8971_PWR2, 4, 0, NULL, 0), | |
221 | SND_SOC_DAPM_PGA("Right Out 1", WM8971_PWR2, 5, 0, NULL, 0), | |
222 | SND_SOC_DAPM_PGA("Left Out 1", WM8971_PWR2, 6, 0, NULL, 0), | |
223 | SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8971_PWR2, 7, 0), | |
224 | SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0), | |
225 | SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0), | |
226 | ||
227 | SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0), | |
228 | SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0), | |
229 | SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0), | |
230 | ||
231 | SND_SOC_DAPM_MUX("Left PGA Mux", WM8971_PWR1, 5, 0, | |
232 | &wm8971_left_pga_controls), | |
233 | SND_SOC_DAPM_MUX("Right PGA Mux", WM8971_PWR1, 4, 0, | |
234 | &wm8971_right_pga_controls), | |
235 | SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, | |
236 | &wm8971_left_line_controls), | |
237 | SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, | |
238 | &wm8971_right_line_controls), | |
239 | ||
240 | SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, | |
241 | &wm8971_monomux_controls), | |
242 | SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, | |
243 | &wm8971_monomux_controls), | |
244 | ||
245 | SND_SOC_DAPM_OUTPUT("LOUT1"), | |
246 | SND_SOC_DAPM_OUTPUT("ROUT1"), | |
247 | SND_SOC_DAPM_OUTPUT("LOUT2"), | |
248 | SND_SOC_DAPM_OUTPUT("ROUT2"), | |
249 | SND_SOC_DAPM_OUTPUT("MONO"), | |
250 | ||
251 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
252 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
253 | SND_SOC_DAPM_INPUT("MIC"), | |
254 | }; | |
255 | ||
256 | static const struct snd_soc_dapm_route audio_map[] = { | |
257 | /* left mixer */ | |
258 | {"Left Mixer", "Playback Switch", "Left DAC"}, | |
259 | {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
260 | {"Left Mixer", "Right Playback Switch", "Right DAC"}, | |
261 | {"Left Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
262 | ||
263 | /* right mixer */ | |
264 | {"Right Mixer", "Left Playback Switch", "Left DAC"}, | |
265 | {"Right Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
266 | {"Right Mixer", "Playback Switch", "Right DAC"}, | |
267 | {"Right Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
268 | ||
269 | /* left out 1 */ | |
270 | {"Left Out 1", NULL, "Left Mixer"}, | |
271 | {"LOUT1", NULL, "Left Out 1"}, | |
272 | ||
273 | /* left out 2 */ | |
274 | {"Left Out 2", NULL, "Left Mixer"}, | |
275 | {"LOUT2", NULL, "Left Out 2"}, | |
276 | ||
277 | /* right out 1 */ | |
278 | {"Right Out 1", NULL, "Right Mixer"}, | |
279 | {"ROUT1", NULL, "Right Out 1"}, | |
280 | ||
281 | /* right out 2 */ | |
282 | {"Right Out 2", NULL, "Right Mixer"}, | |
283 | {"ROUT2", NULL, "Right Out 2"}, | |
284 | ||
285 | /* mono mixer */ | |
286 | {"Mono Mixer", "Left Playback Switch", "Left DAC"}, | |
287 | {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"}, | |
288 | {"Mono Mixer", "Right Playback Switch", "Right DAC"}, | |
289 | {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"}, | |
290 | ||
291 | /* mono out */ | |
292 | {"Mono Out", NULL, "Mono Mixer"}, | |
293 | {"MONO1", NULL, "Mono Out"}, | |
294 | ||
295 | /* Left Line Mux */ | |
296 | {"Left Line Mux", "Line", "LINPUT1"}, | |
297 | {"Left Line Mux", "PGA", "Left PGA Mux"}, | |
298 | {"Left Line Mux", "Differential", "Differential Mux"}, | |
299 | ||
300 | /* Right Line Mux */ | |
301 | {"Right Line Mux", "Line", "RINPUT1"}, | |
302 | {"Right Line Mux", "Mic", "MIC"}, | |
303 | {"Right Line Mux", "PGA", "Right PGA Mux"}, | |
304 | {"Right Line Mux", "Differential", "Differential Mux"}, | |
305 | ||
306 | /* Left PGA Mux */ | |
307 | {"Left PGA Mux", "Line", "LINPUT1"}, | |
308 | {"Left PGA Mux", "Differential", "Differential Mux"}, | |
309 | ||
310 | /* Right PGA Mux */ | |
311 | {"Right PGA Mux", "Line", "RINPUT1"}, | |
312 | {"Right PGA Mux", "Differential", "Differential Mux"}, | |
313 | ||
314 | /* Differential Mux */ | |
315 | {"Differential Mux", "Line", "LINPUT1"}, | |
316 | {"Differential Mux", "Line", "RINPUT1"}, | |
317 | ||
318 | /* Left ADC Mux */ | |
319 | {"Left ADC Mux", "Stereo", "Left PGA Mux"}, | |
320 | {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"}, | |
321 | {"Left ADC Mux", "Digital Mono", "Left PGA Mux"}, | |
322 | ||
323 | /* Right ADC Mux */ | |
324 | {"Right ADC Mux", "Stereo", "Right PGA Mux"}, | |
325 | {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"}, | |
326 | {"Right ADC Mux", "Digital Mono", "Right PGA Mux"}, | |
327 | ||
328 | /* ADC */ | |
329 | {"Left ADC", NULL, "Left ADC Mux"}, | |
330 | {"Right ADC", NULL, "Right ADC Mux"}, | |
331 | }; | |
332 | ||
333 | static int wm8971_add_widgets(struct snd_soc_codec *codec) | |
334 | { | |
335 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
336 | ||
337 | snd_soc_dapm_new_controls(dapm, wm8971_dapm_widgets, | |
338 | ARRAY_SIZE(wm8971_dapm_widgets)); | |
339 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); | |
340 | ||
341 | return 0; | |
342 | } | |
343 | ||
344 | struct _coeff_div { | |
345 | u32 mclk; | |
346 | u32 rate; | |
347 | u16 fs; | |
348 | u8 sr:5; | |
349 | u8 usb:1; | |
350 | }; | |
351 | ||
352 | /* codec hifi mclk clock divider coefficients */ | |
353 | static const struct _coeff_div coeff_div[] = { | |
354 | /* 8k */ | |
355 | {12288000, 8000, 1536, 0x6, 0x0}, | |
356 | {11289600, 8000, 1408, 0x16, 0x0}, | |
357 | {18432000, 8000, 2304, 0x7, 0x0}, | |
358 | {16934400, 8000, 2112, 0x17, 0x0}, | |
359 | {12000000, 8000, 1500, 0x6, 0x1}, | |
360 | ||
361 | /* 11.025k */ | |
362 | {11289600, 11025, 1024, 0x18, 0x0}, | |
363 | {16934400, 11025, 1536, 0x19, 0x0}, | |
364 | {12000000, 11025, 1088, 0x19, 0x1}, | |
365 | ||
366 | /* 16k */ | |
367 | {12288000, 16000, 768, 0xa, 0x0}, | |
368 | {18432000, 16000, 1152, 0xb, 0x0}, | |
369 | {12000000, 16000, 750, 0xa, 0x1}, | |
370 | ||
371 | /* 22.05k */ | |
372 | {11289600, 22050, 512, 0x1a, 0x0}, | |
373 | {16934400, 22050, 768, 0x1b, 0x0}, | |
374 | {12000000, 22050, 544, 0x1b, 0x1}, | |
375 | ||
376 | /* 32k */ | |
377 | {12288000, 32000, 384, 0xc, 0x0}, | |
378 | {18432000, 32000, 576, 0xd, 0x0}, | |
379 | {12000000, 32000, 375, 0xa, 0x1}, | |
380 | ||
381 | /* 44.1k */ | |
382 | {11289600, 44100, 256, 0x10, 0x0}, | |
383 | {16934400, 44100, 384, 0x11, 0x0}, | |
384 | {12000000, 44100, 272, 0x11, 0x1}, | |
385 | ||
386 | /* 48k */ | |
387 | {12288000, 48000, 256, 0x0, 0x0}, | |
388 | {18432000, 48000, 384, 0x1, 0x0}, | |
389 | {12000000, 48000, 250, 0x0, 0x1}, | |
390 | ||
391 | /* 88.2k */ | |
392 | {11289600, 88200, 128, 0x1e, 0x0}, | |
393 | {16934400, 88200, 192, 0x1f, 0x0}, | |
394 | {12000000, 88200, 136, 0x1f, 0x1}, | |
395 | ||
396 | /* 96k */ | |
397 | {12288000, 96000, 128, 0xe, 0x0}, | |
398 | {18432000, 96000, 192, 0xf, 0x0}, | |
399 | {12000000, 96000, 125, 0xe, 0x1}, | |
400 | }; | |
401 | ||
402 | static int get_coeff(int mclk, int rate) | |
403 | { | |
404 | int i; | |
405 | ||
406 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
407 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
408 | return i; | |
409 | } | |
410 | return -EINVAL; | |
411 | } | |
412 | ||
413 | static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
414 | int clk_id, unsigned int freq, int dir) | |
415 | { | |
416 | struct snd_soc_codec *codec = codec_dai->codec; | |
417 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); | |
418 | ||
419 | switch (freq) { | |
420 | case 11289600: | |
421 | case 12000000: | |
422 | case 12288000: | |
423 | case 16934400: | |
424 | case 18432000: | |
425 | wm8971->sysclk = freq; | |
426 | return 0; | |
427 | } | |
428 | return -EINVAL; | |
429 | } | |
430 | ||
431 | static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
432 | unsigned int fmt) | |
433 | { | |
434 | struct snd_soc_codec *codec = codec_dai->codec; | |
435 | u16 iface = 0; | |
436 | ||
437 | /* set master/slave audio interface */ | |
438 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
439 | case SND_SOC_DAIFMT_CBM_CFM: | |
440 | iface = 0x0040; | |
441 | break; | |
442 | case SND_SOC_DAIFMT_CBS_CFS: | |
443 | break; | |
444 | default: | |
445 | return -EINVAL; | |
446 | } | |
447 | ||
448 | /* interface format */ | |
449 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
450 | case SND_SOC_DAIFMT_I2S: | |
451 | iface |= 0x0002; | |
452 | break; | |
453 | case SND_SOC_DAIFMT_RIGHT_J: | |
454 | break; | |
455 | case SND_SOC_DAIFMT_LEFT_J: | |
456 | iface |= 0x0001; | |
457 | break; | |
458 | case SND_SOC_DAIFMT_DSP_A: | |
459 | iface |= 0x0003; | |
460 | break; | |
461 | case SND_SOC_DAIFMT_DSP_B: | |
462 | iface |= 0x0013; | |
463 | break; | |
464 | default: | |
465 | return -EINVAL; | |
466 | } | |
467 | ||
468 | /* clock inversion */ | |
469 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
470 | case SND_SOC_DAIFMT_NB_NF: | |
471 | break; | |
472 | case SND_SOC_DAIFMT_IB_IF: | |
473 | iface |= 0x0090; | |
474 | break; | |
475 | case SND_SOC_DAIFMT_IB_NF: | |
476 | iface |= 0x0080; | |
477 | break; | |
478 | case SND_SOC_DAIFMT_NB_IF: | |
479 | iface |= 0x0010; | |
480 | break; | |
481 | default: | |
482 | return -EINVAL; | |
483 | } | |
484 | ||
485 | snd_soc_write(codec, WM8971_IFACE, iface); | |
486 | return 0; | |
487 | } | |
488 | ||
489 | static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, | |
490 | struct snd_pcm_hw_params *params, | |
491 | struct snd_soc_dai *dai) | |
492 | { | |
493 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
494 | struct snd_soc_codec *codec = rtd->codec; | |
495 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); | |
496 | u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3; | |
497 | u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0; | |
498 | int coeff = get_coeff(wm8971->sysclk, params_rate(params)); | |
499 | ||
500 | /* bit size */ | |
501 | switch (params_format(params)) { | |
502 | case SNDRV_PCM_FORMAT_S16_LE: | |
503 | break; | |
504 | case SNDRV_PCM_FORMAT_S20_3LE: | |
505 | iface |= 0x0004; | |
506 | break; | |
507 | case SNDRV_PCM_FORMAT_S24_LE: | |
508 | iface |= 0x0008; | |
509 | break; | |
510 | case SNDRV_PCM_FORMAT_S32_LE: | |
511 | iface |= 0x000c; | |
512 | break; | |
513 | } | |
514 | ||
515 | /* set iface & srate */ | |
516 | snd_soc_write(codec, WM8971_IFACE, iface); | |
517 | if (coeff >= 0) | |
518 | snd_soc_write(codec, WM8971_SRATE, srate | | |
519 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
524 | static int wm8971_mute(struct snd_soc_dai *dai, int mute) | |
525 | { | |
526 | struct snd_soc_codec *codec = dai->codec; | |
527 | u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7; | |
528 | ||
529 | if (mute) | |
530 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8); | |
531 | else | |
532 | snd_soc_write(codec, WM8971_ADCDAC, mute_reg); | |
533 | return 0; | |
534 | } | |
535 | ||
536 | static int wm8971_set_bias_level(struct snd_soc_codec *codec, | |
537 | enum snd_soc_bias_level level) | |
538 | { | |
539 | u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; | |
540 | ||
541 | switch (level) { | |
542 | case SND_SOC_BIAS_ON: | |
543 | /* set vmid to 50k and unmute dac */ | |
544 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); | |
545 | break; | |
546 | case SND_SOC_BIAS_PREPARE: | |
547 | break; | |
548 | case SND_SOC_BIAS_STANDBY: | |
549 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) | |
550 | snd_soc_cache_sync(codec); | |
551 | ||
552 | /* mute dac and set vmid to 500k, enable VREF */ | |
553 | snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); | |
554 | break; | |
555 | case SND_SOC_BIAS_OFF: | |
556 | snd_soc_write(codec, WM8971_PWR1, 0x0001); | |
557 | break; | |
558 | } | |
559 | codec->dapm.bias_level = level; | |
560 | return 0; | |
561 | } | |
562 | ||
563 | #define WM8971_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ | |
564 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ | |
565 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) | |
566 | ||
567 | #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
568 | SNDRV_PCM_FMTBIT_S24_LE) | |
569 | ||
570 | static const struct snd_soc_dai_ops wm8971_dai_ops = { | |
571 | .hw_params = wm8971_pcm_hw_params, | |
572 | .digital_mute = wm8971_mute, | |
573 | .set_fmt = wm8971_set_dai_fmt, | |
574 | .set_sysclk = wm8971_set_dai_sysclk, | |
575 | }; | |
576 | ||
577 | static struct snd_soc_dai_driver wm8971_dai = { | |
578 | .name = "wm8971-hifi", | |
579 | .playback = { | |
580 | .stream_name = "Playback", | |
581 | .channels_min = 1, | |
582 | .channels_max = 2, | |
583 | .rates = WM8971_RATES, | |
584 | .formats = WM8971_FORMATS,}, | |
585 | .capture = { | |
586 | .stream_name = "Capture", | |
587 | .channels_min = 1, | |
588 | .channels_max = 2, | |
589 | .rates = WM8971_RATES, | |
590 | .formats = WM8971_FORMATS,}, | |
591 | .ops = &wm8971_dai_ops, | |
592 | }; | |
593 | ||
594 | static void wm8971_work(struct work_struct *work) | |
595 | { | |
596 | struct snd_soc_dapm_context *dapm = | |
597 | container_of(work, struct snd_soc_dapm_context, | |
598 | delayed_work.work); | |
599 | struct snd_soc_codec *codec = dapm->codec; | |
600 | wm8971_set_bias_level(codec, codec->dapm.bias_level); | |
601 | } | |
602 | ||
603 | static int wm8971_suspend(struct snd_soc_codec *codec, pm_message_t state) | |
604 | { | |
605 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
606 | return 0; | |
607 | } | |
608 | ||
609 | static int wm8971_resume(struct snd_soc_codec *codec) | |
610 | { | |
611 | u16 reg; | |
612 | ||
613 | wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
614 | ||
615 | /* charge wm8971 caps */ | |
616 | if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { | |
617 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; | |
618 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
619 | codec->dapm.bias_level = SND_SOC_BIAS_ON; | |
620 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
621 | msecs_to_jiffies(1000)); | |
622 | } | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static int wm8971_probe(struct snd_soc_codec *codec) | |
628 | { | |
629 | struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); | |
630 | int ret = 0; | |
631 | u16 reg; | |
632 | ||
633 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type); | |
634 | if (ret < 0) { | |
635 | printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret); | |
636 | return ret; | |
637 | } | |
638 | ||
639 | INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); | |
640 | wm8971_workq = create_workqueue("wm8971"); | |
641 | if (wm8971_workq == NULL) | |
642 | return -ENOMEM; | |
643 | ||
644 | wm8971_reset(codec); | |
645 | ||
646 | /* charge output caps - set vmid to 5k for quick power up */ | |
647 | reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; | |
648 | snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); | |
649 | codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; | |
650 | queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, | |
651 | msecs_to_jiffies(1000)); | |
652 | ||
653 | /* set the update bits */ | |
654 | snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); | |
655 | snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); | |
656 | snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100); | |
657 | snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100); | |
658 | snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100); | |
659 | snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100); | |
660 | snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); | |
661 | snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); | |
662 | ||
663 | snd_soc_add_controls(codec, wm8971_snd_controls, | |
664 | ARRAY_SIZE(wm8971_snd_controls)); | |
665 | wm8971_add_widgets(codec); | |
666 | ||
667 | return ret; | |
668 | } | |
669 | ||
670 | ||
671 | /* power down chip */ | |
672 | static int wm8971_remove(struct snd_soc_codec *codec) | |
673 | { | |
674 | wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
675 | ||
676 | if (wm8971_workq) | |
677 | destroy_workqueue(wm8971_workq); | |
678 | return 0; | |
679 | } | |
680 | ||
681 | static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { | |
682 | .probe = wm8971_probe, | |
683 | .remove = wm8971_remove, | |
684 | .suspend = wm8971_suspend, | |
685 | .resume = wm8971_resume, | |
686 | .set_bias_level = wm8971_set_bias_level, | |
687 | .reg_cache_size = ARRAY_SIZE(wm8971_reg), | |
688 | .reg_word_size = sizeof(u16), | |
689 | .reg_cache_default = wm8971_reg, | |
690 | }; | |
691 | ||
692 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
693 | static __devinit int wm8971_i2c_probe(struct i2c_client *i2c, | |
694 | const struct i2c_device_id *id) | |
695 | { | |
696 | struct wm8971_priv *wm8971; | |
697 | int ret; | |
698 | ||
699 | wm8971 = kzalloc(sizeof(struct wm8971_priv), GFP_KERNEL); | |
700 | if (wm8971 == NULL) | |
701 | return -ENOMEM; | |
702 | ||
703 | wm8971->control_type = SND_SOC_I2C; | |
704 | i2c_set_clientdata(i2c, wm8971); | |
705 | ||
706 | ret = snd_soc_register_codec(&i2c->dev, | |
707 | &soc_codec_dev_wm8971, &wm8971_dai, 1); | |
708 | if (ret < 0) | |
709 | kfree(wm8971); | |
710 | return ret; | |
711 | } | |
712 | ||
713 | static __devexit int wm8971_i2c_remove(struct i2c_client *client) | |
714 | { | |
715 | snd_soc_unregister_codec(&client->dev); | |
716 | kfree(i2c_get_clientdata(client)); | |
717 | return 0; | |
718 | } | |
719 | ||
720 | static const struct i2c_device_id wm8971_i2c_id[] = { | |
721 | { "wm8971", 0 }, | |
722 | { } | |
723 | }; | |
724 | MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); | |
725 | ||
726 | static struct i2c_driver wm8971_i2c_driver = { | |
727 | .driver = { | |
728 | .name = "wm8971-codec", | |
729 | .owner = THIS_MODULE, | |
730 | }, | |
731 | .probe = wm8971_i2c_probe, | |
732 | .remove = __devexit_p(wm8971_i2c_remove), | |
733 | .id_table = wm8971_i2c_id, | |
734 | }; | |
735 | #endif | |
736 | ||
737 | static int __init wm8971_modinit(void) | |
738 | { | |
739 | int ret = 0; | |
740 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
741 | ret = i2c_add_driver(&wm8971_i2c_driver); | |
742 | if (ret != 0) { | |
743 | printk(KERN_ERR "Failed to register WM8971 I2C driver: %d\n", | |
744 | ret); | |
745 | } | |
746 | #endif | |
747 | return ret; | |
748 | } | |
749 | module_init(wm8971_modinit); | |
750 | ||
751 | static void __exit wm8971_exit(void) | |
752 | { | |
753 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
754 | i2c_del_driver(&wm8971_i2c_driver); | |
755 | #endif | |
756 | } | |
757 | module_exit(wm8971_exit); | |
758 | ||
759 | MODULE_DESCRIPTION("ASoC WM8971 driver"); | |
760 | MODULE_AUTHOR("Lab126"); | |
761 | MODULE_LICENSE("GPL"); |